NGN Focus Group - · PDF file NGN Focus Group 3. NGN Standardization Deliverables on Signaling, Security, Migration and Future 12 A NGN is a packet-based network able to provide telecommunication

1

NGN Focus Group

Inje University , School of computer engineering ChulSoo Kim August. xy. 2005

2

1. Why do we need NGN? 2. NGN architecture 3. FGNGN 4. Case features 5. Future issues 6. Conclusions

Contents

125

3

Today Tomorrow

Telephone network

Mobile radio network

IP-Network

Multimedia Access - Advantages • easy to handle • reliable • mobile

Internet

1. Why do we need NGN?

One network for everything

4

1. Why do we need NGN? (Cont)

• Short Term objective: Create New Revenue possibilities – Removal of boundaries between voice and data opens the way to new

kind of services – Can be realized relatively quickly with limited investments

• Long Term objective: Realize Cost Savings – Simpler network – More efficient network – Cheaper network components – Full benefit only realized when all separate networks have fully migrated

towards the target solution

126

5

Driven by Cost Reduction

Possibilities Driven by

Revenue Increase Possibilities

6

Packet Network

WAN UTRAN

Mobile PSTN

CO CableDSL

Broadband

WLL Access

Edge

Core

Control

Applications

Management

Content Media Gateway

Management system

Residential Users

Remote Office/SOHOEnterprise Customers Mobile Users

Softswitches

Application Servers

2. NGN architecture

127

7

2. NGN architecture (Cntd)

• A public packet-based communications network with the following characteristics: – layered architecture

• Layers can evolve independently – open interfaces between the layers and all other networks

• Best in class for each layer – seamless control of multiple transport technologies

• Cost savings due to focused CAPEX and reduced OPEX – Centralized intelligence

• Fast and efficient introduction of new services – Gateway interconnection far simpler than Exchange interconnection

• New services — new revenues

8

• Functional & Nomadicity Architecture (base on IMS & non-IMS) • QoS (include the xDSL Access) • Security Capability (inc. Authentication) • NGN Control and Signaling Capability • Evolution from CGN to NGN

NGN Focus Group • ITU-T Director launched NGN Focus Group at June 2004 • Almost every two month meeting : 6, 7, 9, 11/2004 and 2, 4, 6/2005

Future Packet Network requirementsFPBN (Future Packet-based Network)

WG7

Evolution of Networks to NGN, PSTN evolution to NGNEvol (Evolution)WG 6

NGN Security FrameworkSeC (Security Capability)WG 5

TRQ.IP QoS.SIG.CS1CSC (Control & Signalling)WG 4

TR-123.qos, TR-msnniqos, TR-NGN.qos, TR-NGN.NHNperf, TR-e2eqos.1, TR-enet, TR-atmipa, TR-racs, TR-ipaqos

QoS (Quality of Services)WG 3

Req. and Architecture, Functional Req. for NGN Mobility, Functional Req. for Soft Router

FAM (Functional Architecture, and Mobility)

WG 2

NGN Scope, Releases 1 / General Requirements, Servie and Capability, Mobility Services and Capabilities

SR (Service Requirements)WG 1

DeliverablesAreaWG

3. NGN Standardization

128

9 D2TBDFGNGN-OD-00044Customer Manageable IP Network2

D2TBDFGNGN-OD-00043Functional Requirement for Soft Router

2

D11Q05FGNGN-OD-00042Functional Requirements for NGN Mobility

2

D11Q05FGNGN-OD-00035Requirements & Architecture for NGN2 D

PRI2Q05TBDNGN general services and capabilities (release independent)

1

PRI2Q05TBDNGN general requirements (release- independent requirements)

1

D12Q05FGNGN-OD-00036NGN Release 1 general requirements 1 P11Q05TBDMobility Services & Capabilities1 D11Q05FGNGN-OD-00038Services & Capabilities1 D11Q05FGNGN-OD-00037NGN Scope1

StatusReleaseTarget Date

Current DraftTitleWG

NGN Focus Group

Deliverables on Service Requirements and Architecture

3. NGN Standardization

10 D1May ‘05FGNGN-OD- 00024

Performance measurement and management for NGN (TR-pmm)

3

D1July ‘05FGNGN-OD- 00033

A QoS Framework for IP-based access networks (TR-ipaqos)

3

D1July ‘05FGNGN-OD- 00031

Resource and admission control sub-system (TR-racs)

3

P1July ‘05TBDA QoS control architecture for ATM-based IP access networks (TR-atmipa)

3

D1July ‘05FGNGN-OD- 00026

A QoS architecture for Ethernet networks (TR-enet)

3

D1July ‘05FGNGN-OD- 00032

Requirements and framework for end-to-end QoS in NGN (TR-e2eqos.1)

3

DRIFeb. ‘05FGNGN-OD- 00025

Network performance of non-homogeneous networks in NGN (TR-NGN.NHNperf.).

3

DRIFeb. ‘05FGNGN-OD- 00045

General aspects of QoS and network performance in NGN (TR-NGN.QoS)

3

D1Feb. ‘05FGNGN-OD- 00027

Multi Service Provider NNI for IP QoS (TR- msnniqos)

3

D1Feb. ’05FGNGN-OD- 00010

A QoS control architecture for Ethernet- based IP access networks (TR-123.qos)

3

NGN Focus Group 3. NGN Standardization

Deliverables on Quality of Services

129

11

PTBD3Q05TBDCandidate Technologies7 PTBD3Q05TBDHigh Level Architecture7 DTBD2Q05FGNGN-OD-00029Requirements7 DTBD4Q04FGNGN-OD-00028Problem Statement7

D11Q05FGNGN-OD-00040PSTN Evolution to NGN6

D11Q05FGNGN-OD-00039Evolution of Networks to NGN

6

DTBDTBDFGNGN-OD-00034NGN Security Framework5

DTBDTBDFGNGN-OD-00030TRQ.IP QoS.SIG.CS14

NGN Focus Group 3. NGN Standardization

Deliverables on Signaling, Security, Migration and Future

12

A NGN is a packet-based network able to provide telecommunication services and able to make use of multiple broadband,

QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies.

It offers unrestricted access by users to different service providers. It supports generalized mobility which will allow consistent and

ubiquitous provision of services to users.

Definition of NGN (Draft Rec.

Y.2001)

Target Standards Area

Generalized Mobility Convergence btw. Fixed & Mobile

Unrestricted Access Open Access I/F

Separation Services with Transport Architecture and Open API

QoS-enabled Transport

Multiple-Broadband Manageable Broadband

Definition & Features of NGN 4. Key Features

130

13

Management

Transport Adaptation

Transport

CDR

Transport Resource / Policy Control Function

TMGF

SGF

Transport Resource &

Enforcement Functions

Traffic Measurement

Function

PGF

CCF

T. Authentication &Authorization

Function

Mobility Support Function

T.Network Access Control Function

AMGF

Terminal Function

Access Relay Function

Proxy Function

Session & C

all C ontrol

Application CDR

CDR

CDR

CDR

CDR

CDR

S.Authentication & Authorization Function

Application Gateway Function

Application Server Function (may include own Authentication, Authorization and Accounting)

Charging Collection Function (CCF)

Media Resource Control Function MGCF?

Session Control Function PGCF

EMS

NMS

Session Control Proxy Function

All lines of this type attach to the corresponding input line at the CCF within session & call control

Scope of NGN

N etw

ork B order Other NGN

other IP MM Network

(e.g. IMS)

PSTN/ISDN

Internet

Connection point

T.Network Access Process Function

Packet Transport Function

Media Resource

Processing Function

T-1

T-3T-20

T-7

T-4

LS Function User Profile DB Function

Registration Function

T-6

T-8

T-9

T-13

T-12

S-14

T-11

T-15

T-16

T-18

S-1

S-4

S-9

S-10

S-11 S-12

S-13

S-17

S-18

A-1

A-2

Functional Architecture Model 4. Key Features

14

Customer Manageable Capability 4. Key Features

Subscriber Management

AAAAAA

Remote Access SwitchRemote Access Switch

Metro Switch Metro Switch

NNIxUNIxUNIyUNIz NNIy NNIy

C/M-Plane

U-Plane

Access Gateway Access

Gateway

Service Management/Call Center

QoS/SLA Management

Soft Switch Functions

Service ControlService Control

FCAPS Management

Routing, Signaling, OAM

Addressing, NamingAddressing, Naming

Signaling, OAMSignaling, OAM

Ingress LERIngress LER

Edge BE RouterEdge BE Router

Edge MCUEdge MCU

L1/L2 NodeL1/L2 Node

Core LSRCore LSR

Core BE RouterCore BE Router

Core Multicast NodeCore Multicast Node

L1/L2 NodeL1/L2 Node

Egress LER/GWEgress LER/GW

Edge BE RouterEdge BE Router

Edge MCU or GWEdge MCU or GW

L1/L2 Node/GWL1/L2 Node/GW

Vari